A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Gaskets,washers & other seals
NSN 5855-00-832-9341
NSN 5950-01-571-1367
NSN 4140-01-444-3945
NSN 6620-01-009-5921
NSN 2925-01-483-3517
NSN 4140-01-044-3366
NSN 5960-00-325-3076
NSN 6130-01-355-8910
NSN 6650-01-249-3201
NSN 6135-01-554-8523
NSN 5930-00-540-9232
NSN 6135-01-548-1423